Description

2-Ethylhexyl 2-Hydroxyethyl 2-Butenedioate is a specialty ester compound with the CAS number 94158-40-4, valued for its unique bifunctional structure combining both ester and hydroxyl groups. This molecular architecture makes it a versatile intermediate and functional additive, particularly effective as a reactive diluent or plasticizer in polymer systems. It is primarily sought by formulators and manufacturers in the coatings, adhesives, and specialty polymer industries seeking to modify flexibility, viscosity, and cross-linking properties.

Application

• As a reactive diluent in UV-curable coatings, inks, and adhesives to reduce viscosity without compromising performance.
• Functioning as a specialty plasticizer or co-monomer in acrylic, polyester, and polyurethane resin formulations to enhance flexibility and adhesion.
• Utilized as an intermediate in the synthesis of more complex polymeric materials and functional additives.
• Potential use as a solvent or carrier in high-performance industrial applications requiring low volatility and good solvating power.
• Employed in the research and development of novel biomaterials and controlled-release matrices.
• Application in the formulation of specialty lubricants and functional fluids where ester stability is required.

Basic Information

Product Name	2-Ethylhexyl 2-Hydroxyethyl 2-Butenedioate
CAS No.	94158-40-4
Molecular Formula	C16H28O5
Molecular Weight	300.39 g/mol
Synonyms	2-Ethylhexyl 2-hydroxyethyl fumarate; 2-Butenedioic acid, 2-ethylhexyl 2-hydroxyethyl ester; Fumaric acid, 2-ethylhexyl 2-hydroxyethyl ester; 2-Hydroxyethyl 2-ethylhexyl fumarate; Bis(2-ethylhexyl) hydroxytumarate (related); EHHEF; Reactive fumarate ester
EINECS	Contact for details

Quality Control

Our 2-Ethylhexyl 2-Hydroxyethyl 2-Butenedioate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay by HPLC, identity confirmation (IR), and control of key impurities, to ensure it meets precise customer specifications and consistent batch-to-batch reliability. A Certificate of Analysis (COA) documenting all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, acids, and bases. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Acid Value	≤ 1.0 mg KOH/g
Specific Gravity (20°C)	1.020 - 1.050
Refractive Index (20°C)	1.460 - 1.480

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.